1st April 2022

A 29-year-old woman with a known history of sacrolitis presents with increasing back pain

A 29-year-old woman with a known history of sacrolitis presents with increasing back pain and describes experiencing stiffness of her fingers in the morning lasting between 45-60 minutes. She subsequently undergoes an x-ray of her hands along with some blood tests. The blood tests come back as:

• CRP = 80 (<5)
• ESR = 55 (<7)
• Anti-cyclic citrullinated peptide (Anti-CCP) = Positive
• Rheumatoid factor = Negative

X-ray: Early stages of central joint erosions of the interphalangeal joints noted.

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